CN112542637B - Aluminum air battery module - Google Patents
Aluminum air battery module Download PDFInfo
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- CN112542637B CN112542637B CN202011598938.XA CN202011598938A CN112542637B CN 112542637 B CN112542637 B CN 112542637B CN 202011598938 A CN202011598938 A CN 202011598938A CN 112542637 B CN112542637 B CN 112542637B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
- H01M12/065—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode with plate-like electrodes or stacks of plate-like electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The invention relates to the field of aluminum-air batteries and discloses an aluminum-air battery module.A current collector is connected with the upper end of an aluminum anode in an upper cover plate module, the lower end of the aluminum anode is inserted into a reaction area, and each air electrode is connected with the current collector through a cathode conductive sheet; the electrolyte inlet is communicated with the liquid inlet pipeline, and the electrolyte outlet is communicated with the liquid discharge pipeline; an external circuit anode connector and an external circuit cathode connector in the upper cover plate module are connected with an external working circuit; a plurality of bipolar plates in the air pressurization system are respectively clamped between every two air electrodes, and two unipolar plates are respectively fixed on the outer sides of the air electrodes at the two ends; one end of the air inlet hood and one end of the air outlet hood are communicated with the air pipeline, and the air inlet hood and the air outlet hood are respectively fixed at two sides of the battery pack and are respectively communicated with the air circulation ports at two sides of each bipolar plate and each unipolar plate. This module provides the basis for air pole side pressure boost, accelerates the reduction reaction of oxygen in the air pole, improves the power of battery by a wide margin.
Description
Technical Field
The invention relates to the technical field of aluminum-air batteries, in particular to an aluminum-air battery module structure.
Background
The aluminum-air battery is a metal-air battery, and takes aluminum alloy as an anode material, oxygen in air as a cathode material, and a solution with different good electric conductivity as an electrolyte, and outputs electric energy to the outside through electrochemical reaction. The aluminum-air battery has the characteristic of high theoretical specific energy which can reach 8100Wh/kg, and although the actual specific energy at present only reaches 350Wh/kg, the aluminum-air battery is 7-8 times that of a lead-acid battery, 5.8 times that of a nickel-hydrogen battery and 2.3 times that of a lithium battery. Meanwhile, the composite material also has the advantages of light weight, no harm to the environment and the like, thereby having very high development prospect.
However, research is mainly focused on electrode materials, and research on battery modules is less.
1. A simple rectangular area (for example, 201510579150.7 aluminum-air battery stack) is mostly adopted in the cavity of the existing aluminum-air battery monomer, and simulation verification proves that the flow of electrolyte in the rectangular area inevitably causes the generation of vortexes, so that a flow dead zone is easily formed, and precipitates and heat generated by electrochemical reaction in the cavity are accumulated and stayed at the flow dead zone and cannot be discharged in time; meanwhile, the problem of complete emptying of electrolyte is not considered in the existing monomer structure, and the phenomenon that the electrolyte stays in the cavity when the battery pack is in a non-working state still exists, so that the problem of serious self-corrosion of the aluminum anode in the non-working state is caused, and the utilization rate of the aluminum anode is seriously reduced.
2. In order to improve the convenience of the battery, the aluminum-air battery generally adopts a plug-in mode to replace the aluminum anode (for example, 201810044401.5 a aluminum-air battery, a battery pack and a generator set), however, this also causes a sealing problem between the upper cover plate and the battery cell, which easily causes the electrolyte to overflow from the aluminum anode replacement port when the battery is in a working state. Meanwhile, the electrode guide sheet is too close to the aluminum anode socket and is not specially protected, and once liquid leakage occurs, the battery is short-circuited, the performance of the battery is affected, and even the battery stops working.
3. Researches show that the performance of the aluminum-air battery in a high-power discharge state can be obviously improved by using pure oxygen for air measurement or increasing the pressure of the air measurement, but the ventilation of the air electrode side of the existing aluminum-air battery pack basically adopts natural air supply or ventilation fan air supply (such as patent: 201410219365.3 aluminum-air battery system), and the two modes can only ensure that the oxygen concentration of the air measurement is kept in a normal environment and cannot generate too much benefit for the electrochemical reaction of the air cathode side.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides an aluminum-air battery module which is applied to the power generation of an aluminum-air battery and improves the reaction rate of reduction reaction in an air electrode, thereby improving the discharge performance of the battery under high-power discharge; the problem that the aluminum anode is difficult to replace and precipitate and waste heat is difficult to discharge is effectively solved, the efficiency of replacing the aluminum anode is greatly improved, in addition, under the condition that no external accessory is added, the self-corrosion condition of the aluminum anode in a non-working state is reduced, and the utilization rate of the aluminum anode is improved.
The technical scheme is as follows: the invention provides an aluminum-air battery module, which mainly comprises an upper cover plate module, a battery pack and an electrolyte system, wherein the upper end of an aluminum anode in the upper cover plate module is connected with a current collector of each battery monomer in the battery pack, the lower end of the aluminum anode is inserted into a reaction area of each battery monomer, and an air electrode of each battery monomer is connected with the current collector through a cathode electric lead; the electrolyte inlet of each single battery is communicated with a liquid inlet pipeline in the electrolyte system, and the electrolyte outlet of each single battery is communicated with a liquid discharge pipeline in the electrolyte system; the external circuit anode connector and the external circuit cathode connector in the upper cover plate module are connected with an external working circuit; the bipolar plates are respectively clamped between the two air poles, and the two unipolar plates are respectively fixed on the outer sides of the two air poles at the two ends; one end of the air inlet hood and one end of the air outlet hood are communicated with an air pipeline, and the air inlet hood and the air outlet hood are respectively fixed on two sides of the battery pack and are respectively communicated with air circulation ports on two sides of the bipolar plates and the unipolar plates.
Further, a safety valve is arranged at the tail end of the exhaust air hood. The safety valve on the exhaust air cover is arranged to keep the air pressure in the air circuit within a safe range, so that the over-high pressure of the air circuit is avoided.
Further, air hood gaskets are further mounted between the intake air hood and the exhaust air hood and the side faces of the battery pack, and the air hood gaskets are fixedly mounted through annular grooves formed in the side faces of the battery pack. The side surface of the battery pack is provided with an annular groove for installing an air cover gasket, then the air inlet cover and the air outlet cover are fixed on the battery pack through bolts, and the air cover gasket is positioned between the air inlet cover and the air outlet cover and the side surface of the battery pack to realize the sealing between the air inlet cover and the battery pack and between the air outlet cover and the battery pack.
Furthermore, each single battery is respectively provided with two electrolyte inlets and two electrolyte outlets, the two electrolyte inlets are respectively communicated with the liquid inlet pipeline through two liquid inlet manifolds, and the two electrolyte outlets are respectively communicated with the liquid discharge pipeline through two liquid discharge manifolds. The single battery adopts the design of double electrolyte inlets and double electrolyte outlets, so that the flow speed of the electrolyte entering the single battery is reduced, the electrolyte can keep a small flow speed under a large flow, the flow of the electrolyte in the single battery is better controlled, and the generation of vortexes is avoided;
further, the heights of the two electrolyte inlets, the two liquid inlet manifolds and the liquid inlet pipeline are decreased in sequence. When the battery is in a non-working state, the infusion pump is reversed, and the electrolyte in the single battery returns to the liquid storage tank from the electrolyte inlet; the utilization rate of the aluminum anode is improved by discharging the electrolyte in a non-working state.
Furthermore, the two liquid inlet manifolds are reducing pipes, the pipe diameter of one side close to the liquid inlet pipeline is the largest, and the pipe diameter of one side far away from the liquid inlet pipeline is the smallest; and/or the two liquid discharge manifolds are reducing pipes, the pipe diameter of one side close to the liquid discharge pipeline is the largest, and the pipe diameter of one side far away from the liquid discharge pipeline is the smallest. In order to control the inlet pressure of the electrolyte entering the battery monomer, the liquid inlet manifold and the liquid discharge manifold are both designed into reducing pipes, so that the flow rate of the electrolyte entering the battery monomer is ensured to be the same.
Furthermore, a triangular prism-like flow guide body is arranged at the intersection of the two electrolyte inlets; and/or the two electrolyte inlets are communicated with the reaction region of the battery monomer through a flow guide region of a gradually expanding structure after meeting, and the flow guide region is positioned above the flow guide body; and/or a flow guide grid is arranged in the flow guide area. The junction of the two electrolyte inlets is provided with a triangular prism-like flow guide body, so that the pipeline loss at the junction is reduced; the quasi-triangular prism flow guide body and the flow guide area further guide the electrolyte, the flow guide area is in a gradually expanding structure, and a plurality of groups of grids are arranged to conduct flow division and guide on the electrolyte entering the flow guide area, so that the electrolyte flows more uniformly in the reaction area, the generation of vortexes and flow dead zones in the reaction area is avoided, and precipitates and heat generated by electrochemical reaction are discharged out of a single battery in time; the design of a plurality of groups of flow guide grids and double electrolyte outlets in the flow guide area ensures that the electrolyte flows constantly and uniformly in the whole cell, avoids the generation of vortex, and ensures that heat and sediments generated in the cell reaction area can be discharged in time.
Preferably, the electrolyte inlet and the electrolyte outlet of each of the battery cells are located below and above each of the battery cells, respectively. The design enables the liquid level in the cell body to be better controlled, and the aluminum anode can be completely immersed.
Furthermore, barriers which are vertically arranged are distributed on two sides of the outer wall of the reaction zone. Under the condition of not influencing the flow of electrolyte in the reaction zone, the aluminum anode is separated from the air electrode, so that the problem of short circuit caused by the contact of the aluminum anode and the air electrode when bumping is caused is avoided, and meanwhile, the aluminum anode plays a role in supporting the air electrode.
Preferably, the aluminum anode is composed of an upper side connector and a lower side reactor, and the connector is detachably clamped in a clamping groove on the upper shell in the upper cover plate module; the draw-in groove internal fixation has the positive pole electric conduction piece, works as the connector joint is in when in the draw-in groove, with the one end effective contact of positive pole electric conduction piece, the other end of positive pole electric conduction piece through middle electric conduction piece with the mass flow body is connected. The connecting body of the aluminum anode and the upper shell are detachably clamped through the clamping groove, so that the efficiency of replacing the aluminum anode is greatly improved, the newly replaced aluminum anode can be electrically connected with the current collector again after the aluminum anode is replaced by changing the connecting mode of the connecting body of the aluminum anode and the current collector, and compared with the prior art that an anode electric conduction sheet is damaged when the fixed aluminum anode is replaced, the connecting mode of the aluminum anode and the current collector designed in the invention ensures that the aluminum anode is only required to be taken out and replaced by the new aluminum anode when the aluminum anode is replaced, other components can not be damaged, and the aluminum anode can be repeatedly used; the current guide structure among the battery monomers enables circuits of all monomers in the aluminum-air battery module to form a series connection structure, and improves the working voltage and the output power of the battery module. Meanwhile, the replacement mode of the aluminum anode is simplified, and the replacement speed of the aluminum anode is increased.
Preferably, when the upper cover plate module is mounted on the battery pack, the clamping groove is located above the electrolyte outlet. Because the level of last casing is higher than the electrolyte export, draw-in groove on it is located electrolyte export top promptly, can take place to separate out the hydrogen reaction in the aim at aluminium air battery of design like this, consequently when battery module during operation, can be full of hydrogen around the connector of the T type structure of aluminium positive pole in the last casing to restrain electrolyte and get into near the connector, avoid the connector to be corroded by electrolyte, even have a small amount of electrolyte to soak the connector, also can flow into the reaction zone along with the draw-in groove.
Furthermore, an annular groove is formed in the upper shell and used for installing a sealing ring, and when the upper cover plate module is installed on the battery pack, the sealing ring can seal the aluminum anode inlet groove of the battery monomer, so that the sealing performance of the battery monomer is improved.
Has the advantages that: according to the invention, the air pressurization system is additionally arranged in the aluminum-air battery module, when the battery module works, high-pressure air or pure oxygen is input into the closed air pressurization system through the fan, the high-pressure air or pure oxygen enters the air inlet air hood and the air outlet air hood through the air pipeline and then enters between every two air electrodes through the air circulation ports at the two sides of the double electrode and the single electrode, and the reaction rate of the reduction reaction of the air electrodes can be improved by oxygen contained in the high-pressure air or the pure oxygen, so that the discharge performance of the battery under high-power discharge is improved. When the pressure is too high, the excess air can be discharged through a safety valve arranged at the rear side of the exhaust air cover so as to achieve the pressure in the control air circuit. The air supply environment of the air electrode side is formed into a sealed environment by the air inlet air cover and the air outlet air cover, so that a foundation is provided for pressurization of the air electrode side, the reduction reaction of oxygen in the air electrode is accelerated, and the power of the battery is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an aluminum-air battery module according to an embodiment of the present invention;
FIG. 2 is a diagram of a battery cell structure;
FIG. 3 is a structural view of the battery pack of FIG. 1;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is a structural view of a metal frame of the battery pack of FIG. 1;
FIG. 6 is a block diagram of the internal battery, electrolyte system, air pressurization system, and fastening system of FIG. 1;
FIG. 7 is a rear view of FIG. 6;
fig. 8 is an exploded view of the upper cover plate module 1 of fig. 1;
FIG. 9 is a view showing a circuit connection structure between batteries;
FIG. 10 is a view showing the connection of an aluminum anode to an upper cover plate;
FIG. 11 is a view of the structure of an aluminum anode;
FIG. 12 is a view of the base housing structure;
fig. 13 is an external structural view of an aluminum-air battery module;
the following is a supplementary description of the drawings:
1-an upper cover plate module; 101-an upper shell; 102-an upper cover plate; 103-intermediate conducting sheet front clamping plate; 104-an aluminum anode; 105-intermediate conductor sheet rear clamping plate; 106-anode conducting sheet; 107-intermediate conductive sheet; 108-anode conductive sheet gasket; 109-male screw joint; 110-external circuit anode connection; 111-external circuit cathode connection; 201-base shell; 202-a hasp; 203-left pipeline shell; 204-right conduit shell; 205-pipe shell cover plate; 3-a battery cell; 301-electrolyte inlet; 302-class triangular prism flow guide body; 303-a flow guiding zone; 304-a reaction zone; 305-a flow-guiding grid; 306-an electrolyte outlet; 307-current collector slot; 308-a current collector; 309-air pole; 310-a cathode conducting sheet; 311-a barrier; 401-double threaded rod; 402-battery metal backbone; 403-battery pack metal sub-frame; 501-bipolar plate; 502-a monopolar plate; 503-air hood gasket; 504-intake air hood; 505-exhaust air hood; 506-a safety valve; 507-air lines; 508-air circulation ports; 601-an inlet manifold; 602-a liquid inlet line; 603-a drainage manifold; 604-drain line.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Embodiment 1:
referring to fig. 1 to 13, an aluminum-air battery module according to an embodiment of the present invention mainly includes an upper cover plate module 1, a housing module, a battery pack, a fastening module, an air pressurization system, and an electrolyte system.
As shown in fig. 2, which is a structural diagram of a single battery 3, the single battery 3 includes an electrolyte inlet 301, a triangular prism-like current conductor 302, a current guide region 303, a reaction region 304, a current guide grid 305, an electrolyte outlet 306, a current collector groove 307, a current collector 308, an air electrode 309, and a cathode current guide 310. The battery monomer 3 adopts the design of the double electrolyte inlets 301 and the double electrolyte outlets 306, so that the electrolyte can keep a small flow velocity under a large flow rate, and meanwhile, the flow of the electrolyte in the battery monomer 3 is better controlled, and the generation of vortexes is avoided; the junction of the two electrolyte inlets 301 is provided with a triangular prism-like flow guide body 302, the two electrolyte inlets 301 are communicated with a reaction area 304 of the battery monomer 3 through a flow guide area 303 with a gradually expanding structure after the junction, the flow guide area 303 is positioned above the triangular prism-like flow guide body 302, and three groups of flow guide grids 305 are arranged in the flow guide area 303. The triangular prism-like flow guiding body 302 and the flow guiding area 303 further guide the electrolyte, the flow guiding area 303 is in a gradually expanding structure, and three groups of flow guiding grids 305 are arranged to conduct flow division and guide on the electrolyte entering the flow guiding area 303, so that the flow of the electrolyte in the reaction area 304 is more uniform, the generation of vortexes and flow dead zones in the reaction area 304 is avoided, and precipitates and heat generated by electrochemical reaction are discharged out of the battery monomer 3 in time; the two sides of the outer wall of the reaction zone 304 are provided with the grids 311 which are vertically arranged, so that the aluminum anode 104 and the air electrode 309 are separated under the condition that the flow of electrolyte in the reaction zone 304 is not influenced, the short circuit problem caused by the contact of the aluminum anode 104 and the air electrode 309 when bumping is avoided, and meanwhile, the air electrode 309 is supported; the air electrode 309 is attached to the outside of the reaction region 304 and the grid 311, and is primarily sealed and fixed by a sealant, one end of the cathode conductive sheet 310 is connected to the current collector 308 of the air electrode 309, and the other end is connected to the current collector 308 in the current collector groove 307 mounted on the battery cell 3, and each battery cell 3 has two air electrodes 309, that is, the current generated during the reaction is converged to the current collector 308 through the cathode conductive sheet 310 fixed on the air electrode 309, and is guided to the circuit of the upper cover plate module 1.
As shown in fig. 3, the battery pack is composed of a battery cell 3, a bipolar plate 501, and a unipolar plate 502.
Referring to fig. 3 and 4, the air pressurization system includes a plurality of bipolar plates 501, two unipolar plates 502, an air cap gasket 503, an intake air cap 504, an exhaust air cap 505, a safety valve 506, and an air line 507. A plurality of bipolar plates 501 are respectively clamped between the two air electrodes 309, and the two unipolar plates 502 are respectively fixed at the outer sides of the two air electrodes 309 at the two ends; one end of the intake air cover 504 and the exhaust air cover 505 communicate with an air pipe 507, and both are fixed to both sides of the stack and communicate with air circulation ports 508 on both sides of each of the bipolar plate 501 and the unipolar plate 502, respectively. The bipolar plates 501 are used to hold the air electrodes 309 while providing gas channels for oxygen delivery. The two sides of the bipolar plate 501 are attached to the air electrodes 309 of the two single batteries 3 and are stacked in sequence, and the air electrode 309 on the outermost upper side is covered by the bipolar plate 502 to form a battery pack; the single battery 3, the bipolar plate 501 and the unipolar plate 502 are provided with through holes, and the double-threaded rod 401 penetrates through the through holes to perform primary fastening of the battery pack, so that the single battery 3, the bipolar plate 501 and the unipolar plate 502 are prevented from slipping and falling off. The side of the battery pack is provided with an annular groove for installing an air cover gasket 503, then the air cover 504 and the exhaust air cover 505 are fixed on the battery pack through bolts, and the air cover gasket 503 is positioned between the air cover 504 and the exhaust air cover 505 and the side of the battery pack, so that the sealing between the air cover 504 and the exhaust air cover 505 and the battery pack is realized. The air line 507 connects the intake air cover 504 and the exhaust air cover 505 to form a closed air circuit, which is advantageous for controlling the gas pressure on the air electrode side. When the battery module works, high-pressure air or pure oxygen can be input into the closed air pressurization system through the fan, so that the electrochemical reaction rate of the air electrode 309 is improved. When the pressure is too high, the excess air can be discharged through a safety valve 506 installed at the rear side of the exhaust air cover 505 to reach the pressure in the control air circuit.
Fig. 5 is a metal skeleton structure diagram of a fastening module, a battery pack metal main skeleton 402 and a battery pack metal auxiliary skeleton 403 are used for secondarily fastening the battery pack, bosses are arranged at the contact parts of the battery pack metal main skeleton 402 and the battery pack metal auxiliary skeleton 403 with a unipolar plate 502, and the battery pack metal main skeleton 402 and the battery pack metal auxiliary skeleton 403 provide pretightening force to the battery pack through the bosses, so that the complete fastening of the battery pack is realized, and the leakage of electrolyte between a battery cell 3 and an air electrode 309 is prevented.
Fig. 6 and 7 are a block diagram and a rear view, respectively, of the internal battery, electrolyte system, air pressurization system, and fastening module.
The electrolyte system comprises an inlet manifold 601, an inlet pipeline 602, a drain manifold 603 and a drain pipeline 604, wherein the inlet manifold 601 and the drain manifold 603 are connected with an electrolyte inlet 301 and an electrolyte outlet 306 of the single battery 3; the liquid inlet pipe 602 and the liquid outlet pipe 604 are respectively connected with the liquid inlet manifold 601 and the liquid outlet manifold 603, and meet at a uniform liquid inlet and a uniform liquid outlet of the pipes. In order to control the inlet pressure of the electrolyte entering the single battery 3, the liquid inlet manifold 601 and the liquid discharge manifold 603 are both designed as reducing pipes, the pipe diameter of the liquid inlet manifold 601 close to one side of the liquid inlet pipeline 602 is the largest, and the pipe diameter of the liquid inlet manifold far away from one side of the liquid inlet pipeline 602 is the smallest; the pipe diameter of the drain manifold 603 on the side close to the drain line 604 is the largest, and the pipe diameter on the side far from the drain line 604 is the smallest. Thereby ensuring the same flow rate of electrolyte into the cells 3. In order to exhaust the electrolyte in the single battery 3, the heights of the electrolyte inlet 301, the liquid inlet manifold 601 and the liquid inlet pipeline 602 are sequentially reduced, and when the infusion pump is in a non-working state, the infusion pump is reversely rotated, and the electrolyte in the single battery 3 is returned to the liquid storage tank from the inlet; the manner in which the electrolyte is discharged in the non-operating state improves the anode utilization of the aluminum anode 104.
The upper cover plate module 1 includes an upper case 101, an upper cover plate 102, a middle conductive sheet front clamping plate 103, an aluminum anode 104, a middle conductive sheet rear clamping plate 105, an anode conductive sheet 106, a middle conductive sheet 107, an anode conductive sheet gasket 108, an external screw joint 109, an external circuit anode joint 110, an external circuit cathode joint 111, a boss is provided at the lower side of the upper case 101, used for installing and fixing the aluminum anode 104 and the anode conducting strip 106, fig. 11 is a structural diagram of the aluminum anode, the square structure at the lower side of the aluminum anode 104 is a reactant, mainly participating in electrochemical reaction, the T-shaped structure on the upper part is a connector which is used for detachably clamping the aluminum anode 104 in a clamping groove arranged on the upper shell 101, the anode electric conductor 106 is fixed in the clamping groove, and when the connector joint was in the draw-in groove, the connector effectively contacted with the one end of positive pole electric conduction piece, and the other end of positive pole electric conduction piece is connected with the mass flow body through middle electric conduction piece. The upper case 101 is provided with an annular groove for mounting a sealing ring capable of sealing the aluminum anode inlet groove of the battery cell 3 when the upper cover plate module 1 is mounted on the battery pack.
Go up casing 101's level is higher than electrolyte export 306, and the draw-in groove is located promptly electrolyte export 306's top because can take place to separate out the hydrogen reaction among the aluminium air cell, consequently when battery module during operation, can be full of hydrogen around the connector of the T type structure of last casing 101 internal aluminium positive pole to restrain electrolyte and get into near the connector, avoid the connector to be corroded by electrolyte, even have a small amount of electrolyte to soak the connector, also can flow into reaction zone 304 along with the draw-in groove. The middle conductive sheet front clamping plate 103, the middle conductive sheet rear clamping plate 105, the middle conductive sheet 107, the anode conductive sheet gasket 108, the external thread connector 109, the anode external circuit 110 and the cathode external circuit 111 are all arranged inside the upper shell and are covered by the upper cover plate 102. Wherein, positive pole electric conduction piece 106 is installed in the draw-in groove, work as the connector joint is in when in the draw-in groove, effectively contact with the one end of positive pole electric conduction piece 106, the other end of positive pole electric conduction piece 106 runs through to supreme casing 101 inside from last casing 101 draw-in groove, and through positive pole electric conduction piece gasket 108, external screw thread connector 109 fastens, splint 105 are fixed behind middle electric conduction piece 107 through middle electric conduction piece front splint 103, middle electric conduction piece 107, the one end and the positive pole electric conduction piece 106 of middle electric conduction piece are connected, the other end is the joint design, the joint design installation is fixed in casing 101 downside, when upper cover plate module 1 installs on the group battery, the joint and the mass flow body 308 of middle electric conduction piece 107 are connected. The external circuit anode tab 110 and the external circuit cathode tab 111 are installed in the circuit groove of the upper case 101. When the battery module operates, a closed circuit is formed in each battery monomer 3, a series circuit is formed between the monomers, and current is guided to an external working circuit through an external circuit anode connector 110 and an external circuit cathode connector 111.
The housing module comprises a base shell 201, a buckle 202, a left pipeline shell 203, a right pipeline shell 204 and a pipeline shell cover plate 205. The bottom of the base shell 201 is provided with a sliding groove corresponding to the bottom of the battery pack, the battery pack can be installed and fixed on the base shell 201 from the side surface, the left pipeline shell 203 and the right pipeline shell 204 are installed on the left side of the base shell 201 and fixed through bolts, and the contact positions of the left pipeline shell 203 and the right pipeline shell 204 are provided with prismatic platforms to completely fix the battery pack in the base shell 201.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (8)
1. An aluminum-air battery module mainly comprises an upper cover plate module (1), a battery pack and an electrolyte system, wherein the upper end of an aluminum anode (104) in the upper cover plate module (1) is connected with a current collector (308) of each battery monomer (3) in the battery pack, the lower end of the aluminum anode is inserted into a reaction zone (304) of each battery monomer (3), and an air electrode (309) in each battery monomer (3) is connected with the current collector (308) through a cathode electric lead (310); an electrolyte inlet (301) of each single battery (3) is communicated with a liquid inlet pipeline (602) in the electrolyte system, and an electrolyte outlet (306) of each single battery (3) is communicated with a liquid outlet pipeline (604) in the electrolyte system; an external circuit anode connector (110) and an external circuit cathode connector (111) in the upper cover plate module (1) are connected with an external working circuit; it is characterized in that the preparation method is characterized in that,
the air supercharging device also comprises an air supercharging system, wherein a plurality of bipolar plates (501) are respectively clamped between the two air electrodes (309), and two unipolar plates (502) are respectively fixed on the outer sides of the two air electrodes (309) at the two ends; one end of an air inlet hood (504) and one end of an air outlet hood (505) are communicated with an air pipeline (507), and the air inlet hood and the air outlet hood are respectively fixed on two sides of the battery pack and are respectively communicated with air circulation ports (508) on two sides of each bipolar plate (501) and each unipolar plate (502);
each single battery (3) is respectively provided with two electrolyte inlets (301) and two electrolyte outlets (306), the two electrolyte inlets (301) are respectively communicated with the liquid inlet pipeline (602) through two liquid inlet manifolds (601), and the two electrolyte outlets (306) are respectively communicated with the liquid discharge pipeline (604) through two liquid discharge manifolds (603); the heights of the two electrolyte inlets (301), the two liquid inlet manifolds (601) and the liquid inlet pipeline (602) are sequentially reduced.
2. The aluminum-air battery module of claim 1, wherein: and a safety valve (506) is arranged at the tail end of the exhaust air cover (505).
3. The aluminum-air battery module of claim 1, wherein: an air hood gasket (503) is further mounted between the intake air hood (504) and the exhaust air hood (505) and the side surface of the battery pack, and the air hood gasket (503) is mounted and fixed through an annular groove formed in the side surface of the battery pack.
4. The aluminum-air battery module of claim 1, wherein: the two liquid inlet manifolds (601) are reducing pipes, the pipe diameter of one side close to the liquid inlet pipeline (602) is the largest, and the pipe diameter of one side far away from the liquid inlet pipeline (602) is the smallest;
and/or the two liquid discharge manifolds (603) are reducing pipes, the pipe diameter of one side close to the liquid discharge pipeline (604) is the largest, and the pipe diameter of one side far away from the liquid discharge pipeline (604) is the smallest.
5. The aluminum-air battery module of claim 1, wherein: a triangular prism-like flow guide body (302) is arranged at the intersection of the two electrolyte inlets (301);
and/or the two electrolyte inlets (301) are communicated with a reaction area (304) of the battery monomer (3) through a flow guide area (303) with a gradually expanding structure after meeting, and the flow guide area (303) is positioned above the triangular prism-like flow guide body (302);
and/or a flow guiding grid (305) is arranged in the flow guiding area (303).
6. The aluminum-air battery module according to any one of claims 1 to 5, wherein: the electrolyte inlet (301) and the electrolyte outlet (306) of each single battery (3) are respectively positioned below and above each single battery (3).
7. The aluminum-air battery module according to any one of claims 1 to 5, wherein: the aluminum anode (104) is composed of an upper side connector and a lower side reactor, and the connector is detachably clamped in a clamping groove on the upper shell (101) in the upper cover plate module (1); the draw-in groove internal fixation has anode electric conduction piece (106), works as the connector joint is in when the draw-in groove, with the one end effective contact of anode electric conduction piece (106), the other end of anode electric conduction piece (106) through middle electric conduction piece (107) with it connects to collect body (308).
8. The aluminum-air battery module of claim 7, wherein: when the upper cover plate module (1) is installed on the battery pack, the clamping groove is located above the electrolyte outlet (306).
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| CN113328115B (en) * | 2021-05-20 | 2022-05-31 | 湖北劲铝新源电池科技有限公司 | Metal-air battery system and vehicle |
| CN113991219B (en) * | 2021-10-27 | 2023-06-27 | 苏州甲子数字科技有限公司 | Dual-cycle cooling battery device and system applied to aluminum air battery |
| CN114361657B (en) * | 2021-12-09 | 2023-10-10 | 江苏大学 | Single electrolyte aluminum air battery monomer structure |
| CN116365115B (en) * | 2023-04-20 | 2023-11-03 | 湖南协林科技集团有限公司 | High-power aluminum air fuel power supply |
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| CN104716403B (en) * | 2013-12-15 | 2017-02-01 | 中国科学院大连化学物理研究所 | Anode rapid plugging type metal/air battery |
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Effective date of registration: 20221009 Address after: 223700 North side of Zhonglin Avenue, Suqian High tech Industrial Development Zone, Jiangsu Province Patentee after: Suqian Ruihe Aluminum Technology Co.,Ltd. Address before: 212000 building C23, science and Technology Industrial Park, No.99, dingmaojing 15th Road, Zhenjiang New District, Jiangsu Province Patentee before: LYUYE PILOT PLANT TEST LOW CARBON TECHNOLOGY (ZHENJIANG) Co.,Ltd. |